Game 1: Kathryn Granahan (she signed in as ""Mrs. X"" to avoid name recognition, and the panel was not blindfolded) - ""Treasurer of United States"" (from Philadelphia, PA, she is the 4th female Treasurer) Game 2: Bob Sherman - ""Thumb Tack Salesman"" (for the American Thumbtack Company, he is from Hollywood, CA) Game 3: Robert Preston (as Mystery Guest) (he's so adorable!) Game 4: Robert H. Lehman - ""Interior Decorator of Elevators"" (for Elevator Interiors, Inc., he works on their sales staff and is from NYC) (thetvdb.com)